I would like to insert a copy of a graph to show what I am asking a question about? can someone please tell me how to do this? 
See http://www.weather-watch.com/smf/index.php?topic=4503.0 If it doesn’t exist already as a gif or jpg you’ll need to use a screen capture program to make it one.
you can use print screen on the keyboard
and then paste as a new image into WORD or painshoppro, or similar 